half-baked PR

backend/settings/common.py

@@ -2,7 +2,7 @@
 from sys import path
 from os.path import join
 
-from django.core.urlresolvers import reverse_lazy
+from django.urls import reverse_lazy
 
 # Build paths inside the project like this: os.path.join(BASE_DIR, ...)
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

backend/urls.py

@@ -1,5 +1,6 @@
 from django.conf.urls import url, include
-from django.contrib.auth.views import login, logout_then_login
+from django.contrib.auth import login
+from django.contrib.auth.views import logout_then_login
 from django.contrib import admin
 
 from .views import app, index

backend/views.py

@@ -2,7 +2,7 @@
 
 from django.contrib.auth.decorators import login_required
 from django.conf import settings
-from django.core.urlresolvers import reverse
+from django.urls import reverse
 from django.shortcuts import render, redirect